I think it could have been a transcriber/enumerator spelling it as it sounded to them at the time. Wikipedia has an article on Suchowola (http://en.wikipedia.org/wiki/Suchowola):
"Suchowola [suxɔˈvɔla] is a town in north-eastern Poland in Sokółka county, located on both banks of the Olszanka River. The town was founded in 16th century and in 1777 it was granted with city rights. In 1775 royal astronomer Szymon Antoni Sobiekrajski published a report in which he stated that Suchowola is the exact geographic centre of Europe. Due to serious losses in population during the World War II the rights were halted in 1950. On January 1, 1997, Suchowola became a town again." [I think I'd go with this spelling since the other didn't come into existence till much later.]
Its website is http://www.suchowola.com.pl
[When I put Sochowice, Poland in Wikipedia's search line, it came back with "Did you mean: Sosnowice, Poland?" When I put in Corva, Russia, it asked if I meant CORA, Russia? When I clicked on that, it asked about GORA, of which there are six rural localities in Moscow Oblast as of 2009; 1 in Vladimir Oblast ; and several other rural localities in Russia.]
A Yahoo search for Sosnowice, Poland came back with "Sosnowiec , Poland?" This is a city in Zagłębie Dąbrowskie in southern Poland, near Katowice, and only formed in 1999. Its name comes from Polish "sosna", referring to the pine forests which were common prior to 1830. It was originally known as Sosnowice. Sosnowiec was granted city rights only in 1902, over a century after the military partitions of the Polish-Lithuanian Commonwealth.
Sosnowiec belonged originally to the Kraków Voivodeship (14th century-1795). As a result of the third partition of Poland however, it was seized by the Kingdom of Prussia and joined with the New Silesia. During the Napoleonic Wars against Prussians, it became part of the Duchy of Warsaw and later, Congress Poland ruled by the namestniks (Viceroys) of the Russian Empire. In June 1902, by the order of tsar Nicholas II, Sosnowiec was legally named a city with the area of 19 km² and with 60,000 inhabitants.
Its website is http://www.sosnowiec.pl.
As for them speaking Yiddish: "Yiddish (ייyidish or אידיש idish, literally "Jewish") is a High German language of Ashkenazi Jewish origin, spoken throughout the world. It developed as a fusion of German dialects with Hebrew, Aramaic, Slavic languages and traces of Romance languages. It is written in the Hebrew alphabet. The language originated in the Ashkenazi culture that developed from about the 10th century in the Rhineland and then spread to Central and Eastern Europe and eventually to other continents.
It is spoken today in the United States, Israel, Poland, Argentina, Brazil, United Kingdom, Russia, Canada, Ukraine, Belarus, Hungary, Mexico, Moldova, Lithuania, Belgium, Germany, Australia, France and elsewhere.
[Also, Poland at one time or another was part of Russia. My friend's great-grandfather was born in Lithuania, but it always comes up as Russia as his birthplace because at one time it, also was part of Russia--along with Latvia and Estonia. For instance, the Lithuanian Soviet Socialist Republic was established after the occupation and later annexation of Lithuania in 1940 and existed until 1990, while the Republic of Lithuania is a country in Northern Europe, the southernmost of the three Baltic states. Situated along the southeastern shore of the Baltic Sea, it shares borders with Latvia to the north, Belarus to the southeast, Poland, and the Russian exclave of Kaliningrad to the southwest. Across the Baltic Sea to the west lies Sweden and Denmark. Its population is 3.28 million. Its capital and largest city is Vilnius, where my friend's great-grandfather was born. He, too, spoke Yiddish.]